Add signatures for `cmd/tap`.
Add signatures for `cmd/tap`.

MikeMcQuaid/brew,konqui/brew,sjackman/homebrew,konqui/brew,Homebrew/brew,MikeMcQuaid/brew,EricFromCanada/brew,Homebrew/brew,EricFromCanada/brew,sjackman/homebrew,claui/brew,konqui/brew,claui/brew,vitorgalvao/brew,JCount/brew,vitorgalvao/brew,JCount/brew,JCount/brew,JCount/brew,claui/brew,Homebrew/brew,sjackman/homebrew,sjackman/homebrew,nandub/brew,nandub/brew,MikeMcQuaid/brew,vitorgalvao/brew,Homebrew/brew,nandub/brew,EricFromCanada/brew,EricFromCanada/brew,nandub/brew,claui/brew,vitorgalvao/brew,konqui/brew,MikeMcQuaid/brew